Benefit Plans, Weighted Average Asset Allocation Percentages (Details)	Dec. 31, 2023	Dec. 31, 2022
Weighted Average Asset Allocations [Abstract]
Weighted average asset allocation percentage	100.00%	100.00%
Equity Securities [Member]
Weighted Average Asset Allocations [Abstract]
Weighted average asset allocation percentage	51.30%	54.30%
Fixed Income Securities [Member]
Weighted Average Asset Allocations [Abstract]
Weighted average asset allocation percentage	35.30%	32.20%
Real Estate [Member]
Weighted Average Asset Allocations [Abstract]
Weighted average asset allocation percentage	0.30%	0.30%
Other [Member]
Weighted Average Asset Allocations [Abstract]
Weighted average asset allocation percentage	13.10%	13.20%